NAME

       Mouse::XS - A Mouse guts in XS

VERSION

       This document describes Mouse version 2.0.0

DESCRIPTION

       Mouse has an optional XS implementation, which is automatically built and used if
       available. According to benchmarks, this is about 2 times faster than Mouse::PurePerl.

   INSTALL
       The XS implementation are selected by default, but you can force it by passing the "--xs"
       option to Makefile.PL.

           perl Makefile.PL --xs

       If you do not want to build the XS implementation, you can pass the "--pp" option to
       Makefile.PL.

           perl Makefile.PL --pp

       Or if you use "cpanm" (>= 1.7), you can give "--pp" option to "cpanm".

           cpanm --pp Mouse

   The MOUSE_PUREPERL (or PERL_ONLY) environment variable
       It can be used to enable the use of Mouse::PurePerl in order to test and debug programs
       that use Mouse.

CAVEAT

       There are some Mouse::XS specific features.

       Mutationg references to the return values of getters
           When you take a reference from Mouse getters, like "$ref = \$obj->foo", the $ref
           refers "\$obj->{foo}". That is, mutating $$ref also alters "$obj->{foo}". The behavior
           may confuse you so you'd better avoid to take a reference directly from getters.

           See <https://rt.cpan.org/Ticket/Display.html?id=82945> for details.

DEPENDENCIES

       The XS implementation requires Perl 5.8.1 or later, and a C compiler.

SEE ALSO

       Mouse

       Mouse::PurePerl